Radiator unit



J. M. FEDDERS.

RADIATOR UNIT.

TION FIL D 2 1,397,625, PatentedNov. 22,1921.

UNITED STATES PATENT OFFICE.

JOHN M. FEDDERS, OF BUFFALO, NEW YORK, ASSIGNOR 'IO FEDIDERS MANUFAC-'I'URING- COMPANY, INC., 0F BUFFALO, NEW YORK. A CORPORATION OF NEWYORK.

RADIATOR UNIT.

Specification of Letters Patent.

Patented Not/22,1921.

To all whom it may concern.

Be it known that I, JOHN M. Fnonnns, a citizen of the United States,residing at Buffalo, in the county of Erie and State of New York, haveinvented new and useful Improvements in Radiator Units, of which thefollowing is a specification.

This invention relates to a radiator unit which is so constructed that aplurality of such units when assembled produce a core for radiators.

The object ofthis invention is to produce a unit of this character whichwhen assembled with others to form a core will not slide laterally outof place, and also provide a staggered water passage between adjacentunits which increases the radiating efficiency, said units being alsoprovided with integral wings which project into the air passages andpromote the radiation of heat from the water passing-through the waterpassages.

.. In the accompanying drawings:

Figure 1 is a fragmentary elevation, partly in section, of a radiatorcontaining my improved units. Fig. 2 is a horizontal section taken online 2-2, Fig. 1. Fig. 3 is a vertical section taken on line 3-8,Fig. 1. Fig. 4 is a perspective view of one of the units.

Similar characters of reference indicate corresponding parts throughoutthe several views. Y c

In its'completed form the radiator comprises a plurality of tortuouswater passages 10, preferably arranged vertically and a plurality ofhorizontal air tubes 11, 12 and '13 arranged between the water passagesand extending fromthe front side to the rear s1de thereof, said passagescommunicating at opposite endswith water boxes or headers of which oneisshown for example, at 14 in Fig. 1, while theair tubes open at theiropposite end to the atmosphere, so that the passage of the air throughthe air tubes carries away the heat of the water in the water passagesorchannels. ,The core or heat exchanging section of the; radiatorcomprises a plurality of units each of which is con structed of a singlestrip of metal so as to form two parallel. air tubesll and 12 and a web15 arranged between these tubes and formed integrally therewith, asshown in Fig. 4. The air tubes, as shown in Fig. 1, are hexagonal andthe same are so arranged .to form triple corrugations on one side of theunit, double corrugations on the opposite side of the unit and two pairsof transverse walls. The triple, corrugation of'each unit comprises theintermediate member consisting of the web 15 which forms two facets 16tapering outwardly tofa central longltudinalsummit 17 inthe form of awedge, and I two side members each consisting of two facets 18. 19tapering outwardly to a central longitudinalsummit 20 in the form of awedge. Each of the pair of corrugations on the opposite side of the unitis arranged diametrically opposite one of the side members ofthe triplecorrugations and forms two facets 21, 22, tapering outwardly to acentral longitudinal-summit 23 in the form of a wedge. Each pair oftransverse walls consists of an outer transverse member 25 forming afacet which connects the outer longitudinal edges of one of the outerfacets 19 of the triple corrugations and one of the outer facets 22 ofthe-double corrugations, and an inner transverse member 241- forming afacet which is connected at one of its longitudinal edges with the innerlongitudinal edge of the inner facet 21 of one of said pair ofcorrugations while its other longitudinal edge engages'with the basebetween the inner facet 18 of one of theside members of the triplecorrugations and the adjacent facet 16 of the intermediate member of thetriple corrugations.- The opposite ends of the outer facets 19 of theside members of the. triple corrugations and of the outer facets 22 ofthe members of'the double corrugations and of the outer wall members 25are provided with lateral off-sets 26. j

In the assembled: condition of'a plurality of such units the outer facet19 of one side member of the triple corrugations is opposite an innerfacet 21 of one member of the pair of corrugationsand the facets 16 onunit-S :howievflr .3 ngage each other along 11.

the intermediate members of the triple corlrugations of adjacent unitstogether also form addit1onal air tubes 13. The several units engageeach other with a wedgingaction owing to thetapering formation of thecooperating surfaces, thereby operating to center the units relativelyto each other and preventing the units from sliding laterally out ofplace while being assembled-and permitting the fr'ontand rear ends ofthe units 7 to he-easilysoldered, so as to seal the water passages andconnect the several units with each other, 7

Furthermore, by formingthe hexagonal tubes so that each air tube has awedge formation on its diametrically opposite sides and on aline,parallel with the general direction of the water passages a minimumcontact o f rnetal between adjacent units is }obtained,,the engagementof each unit in this instancewith an ad acent unit occurring at not morethan three places, thereby" obtaining the maximum radiating efficiencyfor the amount of 'metal' employed.

order to, further increase the radiating efficiency of the unit each oftheinner Walls of a-pair is provided with a plurality of rad atlng wingsor fins 27 which are punched or cut out rot-these walls so .as toremainintegrally. connected therewith and project laterally into the airpath, thereby causingfthe air to be interceptedand cause the sametocarry away theheat from the water in the channels more efiiciently.

Iclaim as my invention:

. 1. A radiator unit comprisinga strip .of

sheet Imetalflbfi itto ,form a triple, corruga-' :tion' on one o f it-ssides, adoublecorrugation on its opposite side, andtwo. pairs ,oftrans-f verse us, said triple corrugations consist-' ingof a cen-ral'corrugation and twousid'e eorrugat 'nsieach ot tapersoutwardly t0central long tudinal summit, each of [said ipairso .:c0 rr gations beingarranged ,gliametricallyopposite: oneof the side members of the triplecorrugations and tapering [outwardly to a central. longitudinal summi'tand'each pairof it-ransverse walls havanouterwall connecting tliefcorres pondng outer longitud naledges.of .one of the pairs ofcorrugations and the adjacent, side m m e th 'l pl c r g n, a d an:

inner wall connected with the inner longitudinal edge of one of the pairof corrugations and en agingits opposite edge'with one of thelongitudinal bases'between the intermediate and one of the side:Inembers or" the triple corrugations.

2. A radiator unit comprising a strip of sheet metal bent to form atriple corrugation on one of its sides, a double corrugation on itsopposite side'and two pairs of transverse walls, said triplecorrugations consisting of a central corrugation and two sidecorrugations each of which tapers outwardly to a central longitudinalsummit, each of said pairs of corrugationsbeing arrangeddiametricallyopposite one of the side members of the triplecorrugations and outerwalls of each 'pairan'd adjac'entfacets of the triple and doublecorrugations being offset laterallyat opposite ends of the unit.

A radiator unitcomprising a strip'of sheet metal bentto form a triplecorrugation on one of its sides, a double corrugation onits'oppositesideand two pairs of transverse walls, said t-riplecorrugations consisting of a central corrugation and two sidecorrugations each/0f which tapers outwardly to a central longitudinalsummit, each of said pairs of corrugations being arranged diametricallyopposite one of the side members of the triple corrugations andtaperingoutwardly toa central longitudinalsummit and each pair oftransversmwalls having an (outer wall connecting the corresponding outerlong1tud1nal edgesof one ofthe pairs of corrugations and the adj acentside memjber of the tr-iple corrugation, andan inner wall connected withthe inner longitudinal edgeof oneof the pairofcorrugati'ons and engagingits opposite edge with oneot the longitudinal bases betweentheintenmediate and one of the side nembers of the triple corrugations,the outer walls of each pair and acent facetsof the tripleand doublecorrugations being ofi'set laterally atopposite ends of theunit andadapted to engage corresponding oifsetson adjacent units to e m was pasages h re s n and the corrugations of ,each unit being adapted to'cooperate with the summit-s of adjacent units gfor producing tubesbetween the intermediate corrugations thereof.

it A r diato i knit mp isi g a plural ty of parallel tubes which haveadjacent sides connected and which are constructed of a single strip ofmetal, the upper and lower sides of said tubes being tapered upwardlyand downwardly to a longitudinal central line, the inner walls of saidtubes being provided with radiating Wings 5. A radiator unit comprisinga plurality of parallel tubes which have adjacent sides connected andwhich are constructed of a single strip of metal the upper an lowersides of said tubes being tapered upwardly and downwardly to alongitudinal central line, the inner walls of said tubes being providedwith radiating wings formed inte grally therewith and projectinglaterally therefrom.

JQHN M. FEDDERS.

